The solubility of cesium nitrate in binary solvents formed by ethanol and water was determined in the temperature range between 278.15 K and 313.15 K at atmospheric pressure using an isothermal method. The reliability of the measured method used in this study was checked by comparing the experimental data with published data in the literature for the CsNO3-water system, and the method proved to be accurate. Experimental solubility data were correlated with Sechenov's equation. (C) 2011 Elsevier B.V. All rights reserved.